Test For Halides Flashcards
What are halides?
Halides are compounds formed when halogens react with other elements, typically metals.
Which elements are considered halogens?
Fluorine, chlorine, bromine, iodine, and astatine.
True or False: Halides can only be formed with metals.
False. Halides can also form with nonmetals.
What is the general formula for halides?
MX, where M is a metal and X is a halogen.
Fill in the blank: The test for halides involves the addition of _______.
silver nitrate.
What color precipitate forms when silver nitrate is added to a chloride solution?
White precipitate.
What color precipitate indicates the presence of bromide?
Cream precipitate.
What color precipitate indicates the presence of iodide?
Yellow precipitate.
What is the reaction of silver nitrate with sodium chloride?
AgNO3 + NaCl -> AgCl (s) + NaNO3.
True or False: The test for halides is qualitative.
True.
What is the solubility of silver chloride in water?
Silver chloride is insoluble in water.
What happens to the precipitate of silver halides when ammonia is added?
The precipitate dissolves in ammonia, except for silver chloride.
Which halide is the least soluble in water?
Silver bromide.
What is the observation when testing for iodide ions with silver nitrate?
A yellow precipitate forms.
What is the confirmatory test for halides?
Addition of dilute nitric acid followed by silver nitrate.
Fill in the blank: The color of the precipitate formed by silver bromide is _______.
Cream.
What are the three main types of halides?
Chlorides, bromides, and iodides.
True or False: Halides are generally ionic compounds.
True.
What is the typical pH of a halide solution?
Neutral, around pH 7.
Which halide is most commonly used in photographic films?
Silver bromide.
What is the effect of heating on silver halide precipitates?
They can decompose into their respective halogen and silver.
What is a common application of halides?
Halides are used in the production of salts and as disinfectants.
What does a white precipitate of silver chloride indicate?
The presence of chloride ions.
Fill in the blank: Bromides are less reactive than _______.
chlorides.
How can halides be distinguished from each other?
By observing the color of the precipitate formed with silver nitrate.
What is the primary use of sodium chloride?
It is commonly used as table salt.
